Do Not Disturb - DND - ZenMode 1.0.1

It can open "Do not disturb" mode on devices where it's hidden, like OnePlus 3 3T 5

You can limit interruptions with "Do not disturb" mode. This mode mutes your device so that it doesn't make sounds or vibrate when you don't want it to. You can also block visual disturbances.

For example, you can use "Do not disturb" to:

Automatically limit sounds at night or during events
Mute interruptions other than alarms, so you wake up on time
Get alerted to calls and messages only from favorite contacts